Home / 47,942.40-71,916.92-14,659.90

Finding the Fourth Proportional to 47,942.40, 71,916.92 and 14,659.90

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Solution

The fourth proportional to 47,942.40, 71,916.92 and 14,659.90 is: 21,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,942.40 : 71,916.92 = 14,659.90 : x
  2. Step 2: Convert to fraction form
    47,942.40/71,916.92 = 14,659.90/x
  3. Step 3: Cross multiply
    47,942.40x = 71,916.92 × 14,659.90
  4. Step 4: Simplify right side
    47,942.40x = 1,054,294,855.51
  5. Step 5: Solve for x
    x = 1,054,294,855.51/47,942.40
  6. Step 6: Final answer
    x = 21,990.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.